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COM Switcher reference design (Kenwood-Handset-Switch-PCB) | Open App Note

Kenwood-Handset-Switch-PCB

twfth9

Components (70)

Reference	Value	Description
Q601	BCM857BS	Dual PNP transistor, 6 pin package
U101,U104	SN74LV595ARGYR	8-bit serial in/out Shift Register 3-State Outputs
U102,U105	SN74LV165ARGYR	Shift Register, 8-bit, Parallel Load
U103	NXB0106BQX	6-Bit Dual supply translating transceiver; auto direction sensing; 3-state
U106-U108,U111-U113	USBLC6-2SC6	Very low capacitance ESD protection diode, 2 data-line, SOT-666
U109	AP2112K-3.3	600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5
U110

Kenwood-Handset-Switch-PCB schematic

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Kenwood-Handset-Switch-PCB board

J101-J104,J605	2.54mm	Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/),Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/),Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/)

J107,J201,J202,J301,J302,J401,J402,J501,J502	JST-PH UART/I2C	Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/),Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/),Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/)